INTRO TO NUTRITION EXAM 1 QUESTIONS &
VERIFIED ANSWERS 2025-2026
Where does chemical and mechanical digestion start?-correct-answer-both start
in the mouth; chemical is the enzymes in the saliva breaking down the food and
mechanical is the teeth grinding up the food
What is an enzyme?-correct-answer-• Small chemicals (proteins) that act on other
chemicals to speed up body processes but aren't changed during those processes
What is the function of bile and where is it produced and stored?-correct-answer-
blends fats in small intestine, fluid produced by liver, stored in the gallbladder
What is the function of the small intestine?-correct-answer-digestion and
absorption
What is the function of the liver?-correct-answer-regulate blood nutrients
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What is the function of the pancreas?-correct-answer-manufactures, hold, &
secrets different digestive enzymes
What does hydrochloric acid do and how does your stomach protect itself from
the acid?-correct-answer-Keeps stomach interior acidic
Coverts pepsinogen into active enzyme pepsin
Secretes mucus
What is the main cause of peptic ulcers?-correct-answer-Area of GI tract that has
been eroded away by a combo of Hcl & pepsin
H. pylori (bacteria)
Where are microvilli found and what is their purpose?-correct-answer-on villi;
multiplies the surface area of small intestine 500x+ increasing absorption capacity
What are the complications of celiac disease and what foods must be avoided?-
correct-answer-Immune cells damage small intestine leading to poor nutrient
absorption.
wheat, grain, and rye